Table 2.
Amounts of flame retardants (ng/wipe) in handwipe samples collected before and after practice.
| Analyte | Before Practice | After Practice | Median Change from before to after (p-value) | ||
|---|---|---|---|---|---|
|
|
|
||||
| Detection Frequency | Median (Range) | Detection Frequency | Median (Range) | ||
| PBDEs | |||||
| BDE 28, 83 | 27% | NR (<0.30-1.25) | 64% | 1.07 (<0.30-6.83) | NR |
| BDE 47 | 100% | 38.6 (7.56-115) | 100% | 117 (19.4-1122) | 71.2 (0.05)* |
| BDE 85, 155 | 55% | 1.63 (<1.10-4.53) | 73% | 3.68 (<1.10-75.1) | 3.12 (0.10) |
| BDE 99 | 82% | 49.5 (<14.3-110) | 100% | 168 (22.2-1702) | 104 (0.09) |
| BDE 100 | 64% | 7.89 (<3.04-17.4) | 100% | 27.7 (3.31-297) | 19.1 (0.32) |
| BDE 153 | 55% | 3.56 (<2.08-8.26) | 82% | 11.7 (<2.08-154) | 8.1 (0.10) |
| ΣPentaBDE | NA | 101 (18.0-251) | NA | 348 (46.6-3356) | 234 (0.03)* |
| BDE 209 | 55% | 5.00 (<4.34-13.5) | 45% | NR (<4.34-9.31) | NR |
| Firemaster 550 | |||||
| TBB | 100% | 60.8 (8.05-651) | 100% | 222 (34.9-770) | 152 (0.04)* |
| TBPH | 91% | 27.9 (<3.19-264) | 100% | 96.4 (15.5-416) | 70.8 (0.01)* |
| Organophosphates | |||||
| TDCPP | 45% | NR (<31.8-255) | 10% | NR (<31.8-81.9) | NR |
| TCPP | 36% | NR (<40.2-97.4) | 0% | NR (<40.2) | NR |
NA=not applicable; NR= data not reported: detection frequency <50%.
*
Statistically significant at the α=0.05 level using the signed rank test.